Method of displaying three-dimensional image and display apparatus using the same

ABSTRACT

A method of displaying a three-dimensional image includes outputting a converted left image generated based on a left image to a pixel of a display panel during a first period, where the converted left image has a grayscale value less than a grayscale value of the left image, outputting the left image to the pixel of the display panel during a second period, outputting a converted right image generated based on a right image to the pixel of the display panel during a third period, where the converted right image has a grayscale value less than a grayscale value of the right image, and outputting the right image to the pixel of the display panel during a fourth period.

This application claims priority to Korean Patent Application No.10-2012-0029036, filed on Mar. 21, 2012, and all the benefits accruingtherefrom under 35 U.S.C. §119, the content of which in its entirety isherein incorporated by reference.

BACKGROUND

1. Field

Exemplary embodiments of the invention relate to a method of displayinga three-dimensional (“3D”) image and a display apparatus using themethod. More particularly, exemplary embodiments of the invention relateto a method of displaying a 3D image with improved display quality and adisplay apparatus using the method.

2. Description of the Related Art

Generally, a liquid crystal display apparatus displays a two-dimensional(“2D”) image. Recently, as a demand for displaying a 3D image has beenincreasing in video game and movie industries, the liquid crystaldisplay apparatus has been developed to display the 3D image.

Generally, a stereoscopic image display apparatus displays the 3D imageusing a binocular parallax between two eyes of a human. For example, astwo eyes of a human are spaced apart from each other, images viewed bytwo eyes of a viewer at different angles are inputted to a human brain.The human brain mixes the images such that the viewer may recognize thestereoscopic image.

The stereoscopic image display device may be divided into a stereoscopictype and an auto-stereoscopic type depending on whether a viewer wearsan extra spectacle or not. The stereoscopic type may include apolarizing glass type and a shutter glass type, for example. In thepolarizing glass type, polarizing glasses selectively transmit a leftimage and a right image to viewer's eyes. In the shutter glass type, aleft image and a right image may be temporally divided to beperiodically displayed, and a viewer wears shutter glasses which opensand closes a left eye shutter and a right eye shutter in synchronizationwith the period of the left and right images.

When the viewer watches the 3D image, a crosstalk, which means that aleft image is shown in a right eye or a right image is shown in a lefteye, may occur.

When image data, an operation of the shutter glasses and an operation ofa backlight assembly are adjusted to effectively prevent the crosstalk,a luminance of the display panel may decrease. Thus, display quality ofthe 3D image may be deteriorated.

SUMMARY

Exemplary embodiments of the invention provide a method of displaying athree-dimensional (“3D”) image with improved display quality of the 3Dimage.

Exemplary embodiments of the invention provide a display apparatus forperforming the method of displaying the 3D image.

In an exemplary embodiment of a method of displaying a 3D imageaccording to the invention, the method includes outputting a convertedleft image generated based on a left image to a pixel of a display panelduring a first period, outputting the left image to the pixel of thedisplay panel during a second period, outputting a converted right imagegenerated based on a right image to the pixel of the display panelduring a third period and outputting the right image to the pixel of thedisplay panel during a fourth period. In such an embodiment, theconverted left image has a grayscale value less than a grayscale valueof the left image, and the converted right image has a grayscale valueless than a grayscale value of the right image.

In an exemplary embodiment, the method may further include sequentiallyproviding light to a plurality of display blocks of the display panelalong a scanning direction of the display blocks.

In an exemplary embodiment, the sequentially providing the light to thedisplay blocks may include temporally providing the light in the secondperiod and temporally providing the light in the fourth period.

In an exemplary embodiment, the method may further include adjusting anoperation of a light converting element based on the left image and theright image, where the light converting element selectively blocks lightcorresponding to the left image and the right image.

In an exemplary embodiment, the light converting element may includelight converting glasses.

In an exemplary embodiment, the light converting element may include aretarder unit disposed on the display panel.

In an exemplary embodiment, the converted left and right images may begenerated by multiplying the grayscale values of the left and rightimages by a converting value.

In an exemplary embodiment, the converting value may be determined basedon the grayscale values of the left and right images.

In an exemplary embodiment, the converted left and right images may begenerated using a lookup table including a plurality of grayscale valuescorresponding to the grayscale values of the left and right images.

In an exemplary embodiment of a method of displaying a 3D imageaccording to the invention, the method includes outputting a convertedleft image generated based on a left image to a pixel of a display panelduring a first period, outputting the left image to the pixel of thedisplay panel during a second period, outputting a converted right imagegenerated based on a right image to the pixel of the display panelduring a third period and outputting the right image to the pixel of thedisplay panel during a fourth period. In such an embodiment, theconverted left image has a grayscale value greater than a grayscalevalue of the left image, and the converted right image has a grayscalevalue greater than a grayscale value of the right image.

In an exemplary embodiment, the method may further include sequentiallyproviding light to a plurality of display blocks of the display panelalong a scanning direction of the display blocks.

In an exemplary embodiment, the sequentially providing the light to thedisplay blocks may include temporally providing the light in the secondperiod and temporally providing the light in the fourth period.

In an exemplary embodiment, the method may further include adjusting anoperation of a light converting element based on the left image and theright image, where the light converting element selectively blocks lightcorresponding to the left image and the right image.

In an exemplary embodiment, the light converting element may includelight converting glasses.

In an exemplary embodiment of a method of displaying a 3D imageaccording to the invention, the method includes outputting a left imageto a pixel of a display panel during a first period, outputting aconverted left image generated based on the left image to the pixel ofthe display panel during a second period, outputting a right image tothe pixel of the display panel during a third period and outputting aconverted right image generated based on the right image to the pixel ofthe display panel during a fourth period. In such an embodiment, theconverted left image has a grayscale value less than a grayscale valueof the left image, and the converted right image has a grayscale valueless than a grayscale value of the right image.

In an exemplary embodiment, the method may further include sequentiallyproviding light to a plurality of display blocks of the display panelalong a scanning direction of the display blocks.

In an exemplary embodiment, the sequentially providing the light to thedisplay blocks may include temporally providing the light in an endingportion of the first period and a beginning portion of the second periodand temporally providing the light in an ending portion of the thirdperiod and a beginning portion of the fourth period.

In the exemplary embodiment, the method may further include adjusting anoperation of a light converting element based on the left image and theright image, where the light converting element selectively blocks lightcorresponding to the left image and the right image.

In an exemplary embodiment, the light converting element may includelight converting glasses.

In an exemplary embodiment of a display apparatus according to theinvention, the display apparatus includes a display panel including apixel and a panel driver which outputs a converted left image generatedbased on a left image to the pixel of the display panel during a firstperiod, outputs the left image to the pixel of the display panel duringa second period, outputting a converted right image generated based on aright image to the pixel of the display panel during a third period, andoutputs the right image to the pixel of the display panel during afourth period, where the converted left image has a grayscale value lessthan a grayscale value of the left image, and the converted right imagehas a grayscale value less than a grayscale value of the right image.

In an exemplary embodiment, the display apparatus may further include alight source part which provides light to the display panel, where thedisplay panel includes a plurality of display blocks, and the lightsource part sequentially providing the light to the display blocks ofthe display panel along a scanning direction of the display blocks.

In an exemplary embodiment, the light source part may temporally providethe light in the second period and may temporally provide the light inthe fourth period.

In an exemplary embodiment, the display apparatus may further include alight converting element which selectively blocks light corresponding tothe left image and the right image.

In an exemplary embodiment, the light converting element may includelight converting glasses.

In an exemplary embodiment, the light converting element may include aretarder unit disposed on the display panel.

In an exemplary embodiment, the panel driver may generate the convertedleft and right images by multiplying the grayscale values of the leftand right images by a converting value.

In an exemplary embodiment, the converting value may be determined basedon the grayscale values of the left and right images.

In an exemplary embodiment, the panel driver may generate the convertedleft and right images using a lookup table including a plurality ofgrayscale values according to the grayscale values of the left and rightimages.

In an exemplary embodiment, the panel driver may include a timingcontroller generating the converted left and right images.

In an exemplary embodiment, the panel driver may include a data driverwhich generates the converted left and right images.

In an exemplary embodiment of a display apparatus according to theinvention, the display apparatus includes a display panel including apixel, and a panel driver which outputs a converted left image generatedbased on a left image to the pixel of the display panel during a firstperiod, outputs the left image to the pixel of the display panel duringa second period, outputs a converted right image generated based on aright image to the pixel of the display panel during a third period, andoutputs the right image to the pixel of the display panel during afourth period, where the converted left image has a grayscale valuegreater than a grayscale value of the left image, and the convertedright image has a grayscale value greater than a grayscale value of theright image.

In an exemplary embodiment, the display apparatus may further include alight source part which provides light to the display panel, where thedisplay panel includes a plurality of display blocks, and the lightsource part sequentially provides the light to the display blocks of thedisplay panel along a scanning direction of the display blocks.

In an exemplary embodiment, the light source part may temporally providethe light in the second period and may temporally provide the light inthe fourth period.

In an exemplary embodiment, the display apparatus may further include alight converting element which selectively blocks light corresponding tothe left image and the right image.

In an exemplary embodiment, the light converting element may includelight converting glasses.

In an exemplary embodiment of a display apparatus according to theinvention, the display apparatus includes a display panel including apixel, and a panel driver which outputs a left image to the pixel of thedisplay panel during a first period, outputs a converted left imagegenerated based on the left image to the pixel of the display panelduring a second period, outputs a right image to the pixel of thedisplay panel during a third period, and outputting a converted rightimage generated based on the right image to the pixel of the displaypanel during a fourth period, where the converted left image has agrayscale value less than a grayscale value of the left image, and theconverted right image has a grayscale value less than a grayscale valueof the right image.

In an exemplary embodiment, the display apparatus may further include alight source part which provides light to the display panel, where thedisplay panel includes a plurality of display blocks, and the lightsource part sequentially provides the light to the display blocks of thedisplay panel along a scanning direction of the display blocks.

In an exemplary embodiment, the light source part may temporally providethe light in an ending portion of the first period and a beginningportion of the second period and may temporally provide the light in anending portion of the third period and a beginning portion of the fourthperiod.

In an exemplary embodiment, the display apparatus may further include alight converting element which selectively blocks light corresponding tothe left image and the right image.

In an exemplary embodiment, the light converting element may includelight converting glasses.

In an exemplary embodiment of a display apparatus according to theinvention, the display apparatus includes a display panel including apixel, and a panel driver which applies one of left and right images tothe pixel during a second period and applies a converted image of theone of the left and right images to the pixel during a first periodprior to the second period, where the converted image of the one of theleft and right images has a grayscale value less than a grayscale valueof the one of the left and right images.

In an exemplary embodiment, the panel driver may generate the convertedimage by multiplying the grayscale value of the one of the left andright images by a converting value.

In an exemplary embodiment, the converting value may be determined basedon the grayscale value of the one of the left and right images.

In an exemplary embodiment, the panel driver may generate the convertedimage of the one of the left and right images using a lookup table whichstores a grayscale value corresponding to the grayscale value of the oneof the left and right images.

In an exemplary embodiment, the display apparatus may further include alight source part which provides light to the display panel, and a lightsource driver which drives the light source part.

In an exemplary embodiment, the light source driver may be connected tothe panel driver, and the light source driver may drive the light sourcepart synchronized with an image displayed on the display panel.

In an exemplary embodiment, the light source part may include aplurality of light emitting blocks, and the light emitting blocks may besequentially driven along a scanning direction of the image displayed onthe display panel.

In an exemplary embodiment, the display apparatus may further include alight converting element which selectively or totally blocks lightcorresponding to the one of the left and the right images.

In an exemplary embodiment, the light converting element may includelight converting glasses.

In an exemplary embodiment, the light converting element may include aretarder unit disposed on the display panel.

In an exemplary embodiment of a display apparatus according to theinvention, the display apparatus includes a display panel including apixel and a panel driver which applies one of left and right images tothe pixel during a second period and applies a converted image of theone of the left and right images to the pixel during a first periodprior to the second period, where the converted image of the one of theleft and right images has a grayscale value greater than a grayscalevalue of the one of the left and right images.

In an exemplary embodiment, the panel driver may generate the convertedimage by multiplying the grayscale value of the one of the left andright images by a converting value.

In an exemplary embodiment, the converting value may be determined basedon the grayscale value of the one of the left and right images.

In an exemplary embodiment, the panel driver may generate the convertedimage using a lookup table which stores a grayscale value correspondingto the one of the left and right images.

In an exemplary embodiment, the display apparatus may further include alight source part which provides light to the display panel, and a lightsource driver which drives the light source part.

In an exemplary embodiment, the light source driver may be connected tothe panel driver, and the light source driver may drive the light sourcepart synchronized with an image displayed on the display panel.

In an exemplary embodiment, the light source part may include aplurality of light emitting blocks, and the light emitting blocks may besequentially driven along a scanning direction of the image displayed onthe display panel.

In an exemplary embodiment, the display apparatus may further include alight converting element which selectively or totally blocks lightcorresponding to the one of the left and right images.

In an exemplary embodiment, the light converting element may includelight converting glasses.

In an exemplary embodiment, the light converting element may include aretarder unit disposed on the display panel.

According to one or more method of displaying the 3D image and thedisplay apparatus using the method, grayscale values of image datadisplayed on the display panel are converted such that a crosstalk iseffectively prevented and a luminance of the display panel increases.Thus, display quality of the 3D image is improved.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other features of the invention will become more apparentby describing in detailed exemplary embodiments thereof with referenceto the accompanying drawings, in which:

FIG. 1 is a block diagram illustrating an exemplary embodiment of adisplay apparatus according to the invention;

FIG. 2 is a timing diagram illustrating an exemplary embodiment of imagedata applied to a display panel of FIG. 1;

FIG. 3 is a conceptual diagram for explaining an exemplary embodiment ofa method of displaying a three-dimensional (“3D”) image using thedisplay apparatus of FIG. 1;

FIG. 4 is a signal timing diagram for explaining an exemplary embodimentof a method of displaying the 3D image using the display apparatus ofFIG. 1;

FIG. 5 is a block diagram illustrating an exemplary embodiment of atiming controller of FIG. 1;

FIG. 6 is a block diagram illustrating an exemplary embodiment of a datadriver of FIG. 1;

FIG. 7 is a timing diagram illustrating image data applied to a displaypanel of an alternative exemplary embodiment of a display apparatusaccording to the invention;

FIG. 8 is a conceptual diagram for explaining an exemplary embodiment ofa method of displaying a 3D image using the display apparatus of FIG. 7;

FIG. 9 is a signal timing diagram for explaining an alternativeexemplary embodiment of a method of displaying the 3D image using thedisplay apparatus of FIG. 7;

FIG. 10 is a conceptual diagram for explaining an exemplary embodimentof a method of displaying a 3D image using an alternative exemplaryembodiment of a display apparatus;

FIG. 11 is a signal timing diagram for explaining an exemplaryembodiment of a method of displaying the 3D image using the displayapparatus of FIG. 10;

FIG. 12 is a signal timing for explaining an exemplary embodiment of amethod of displaying a 3D image using another alternative exemplaryembodiment of a display apparatus;

FIG. 13 is a block diagram illustrating an exemplary embodiment of atiming controller of a display apparatus;

FIG. 14 is a block diagram illustrating an exemplary embodiment of adata driver of the display apparatus of FIG. 13;

FIG. 15 is a conceptual diagram for explaining an exemplary embodimentof a method of displaying a 3D image using another alternative exemplaryembodiment of a display apparatus;

FIG. 16 is a signal timing diagram for explaining an exemplaryembodiment of a method of displaying the 3D image using the displayapparatus of FIG. 15;

FIG. 17 is a conceptual diagram for explaining an exemplary embodimentof a method of displaying a 3D image using another alternative exemplaryembodiment of a display apparatus;

FIG. 18 is a signal timing diagram for explaining an exemplaryembodiment of a method of displaying the 3D image using the displayapparatus of FIG. 17; and

FIG. 19 is a block diagram illustrating an alternative exemplaryembodiment of a display apparatus according to the invention.

DETAILED DESCRIPTION

The invention now will be described more fully hereinafter withreference to the accompanying drawings, in which various embodiments areshown. This invention may, however, be embodied in many different forms,and should not be construed as limited to the embodiments set forthherein. Rather, these embodiments are provided so that this disclosurewill be thorough and complete, and will fully convey the scope of theinvention to those skilled in the art. Like reference numerals refer tolike elements throughout.

It will be understood that when an element or layer is referred to asbeing “on”, “connected to” or “coupled to” another element or layer, itcan be directly on, connected or coupled to the other element or layeror intervening elements or layers may be present. In contrast, when anelement is referred to as being “directly on,” “directly connected to”or “directly coupled to” another element or layer, there are nointervening elements or layers present. Like numbers refer to likeelements throughout. As used herein, the term “and/or” includes any andall combinations of one or more of the associated listed items.

It will be understood that, although the terms first, second, etc. maybe used herein to describe various elements, components, regions, layersand/or sections, these elements, components, regions, layers and/orsections should not be limited by these terms. These terms are only usedto distinguish one element, component, region, layer or section fromanother region, layer or section. Thus, a first element, component,region, layer or section discussed below could be termed a secondelement, component, region, layer or section without departing from theteachings of the invention.

Spatially relative terms, such as “beneath”, “below”, “lower”, “above”,“upper” and the like, may be used herein for ease of description todescribe one element or feature's relationship to another element(s) orfeature(s) as illustrated in the figures. It will be understood that thespatially relative terms are intended to encompass differentorientations of the device in use or operation in addition to theorientation depicted in the figures. For example, if the device in thefigures is turned over, elements described as “below” or “beneath” otherelements or features would then be oriented “above” the other elementsor features. Thus, the exemplary term “below” can encompass both anorientation of above and below. The device may be otherwise oriented(rotated 90 degrees or at other orientations) and the spatially relativedescriptors used herein interpreted accordingly.

The terminology used herein is for the purpose of describing particularembodiments only and is not intended to be limiting of the invention. Asused herein, the singular forms, “a”, “an” and “the” are intended toinclude the plural forms as well, unless the context clearly indicatesotherwise. It will be further understood that the terms “includes”and/or “including”, when used in this specification, specify thepresence of stated features, integers, steps, operations, elements,and/or components, but do not preclude the presence or addition of oneor more other features, integers, steps, operations, elements,components, and/or groups thereof.

Unless otherwise defined, all terms (including technical and scientificterms) used herein have the same meaning as commonly understood by oneof ordinary skill in the art to which this invention belongs. It will befurther understood that terms, such as those defined in commonly useddictionaries, should be interpreted as having a meaning that isconsistent with their meaning in the context of the relevant art andwill not be interpreted in an idealized or overly formal sense unlessexpressly so defined herein.

Exemplary embodiments are described herein with reference to crosssection illustrations that are schematic illustrations of idealizedembodiments. As such, variations from the shapes of the illustrations asa result, for example, of manufacturing techniques and/or tolerances,are to be expected. Thus, embodiments described herein should not beconstrued as limited to the particular shapes of regions as illustratedherein but are to include deviations in shapes that result, for example,from manufacturing. For example, a region illustrated or described asflat may, typically, have rough and/or nonlinear features. Moreover,sharp angles that are illustrated may be rounded. Thus, the regionsillustrated in the figures are schematic in nature and their shapes arenot intended to illustrate the precise shape of a region and are notintended to limit the scope of the claims set forth herein.

All methods described herein can be performed in a suitable order unlessotherwise indicated herein or otherwise clearly contradicted by context.The use of any and all examples, or exemplary language (e.g., “suchas”), is intended merely to better illustrate the invention and does notpose a limitation on the scope of the invention unless otherwiseclaimed. No language in the specification should be construed asindicating any non-claimed element as essential to the practice of theinvention as used herein.

Hereinafter, exemplary embodiments of the invention will be described infurther detail with reference to the accompanying drawings.

FIG. 1 is a block diagram illustrating an exemplary embodiment of adisplay apparatus according to the invention.

Referring to FIG. 1, the display apparatus includes a display panel 100,a panel driving part 200, a light source part 300, a light source driver400 and light converting glasses 500.

The display panel 100 includes a plurality of pixels P which displays animage. In an exemplary embodiment, each of the pixels includes aswitching element TR electrically connected to a gate line GL and a dataline DL, a liquid crystal capacitor CLC connected to the switchingelement TR and a storage capacitor CST connected to the switchingelement TR. The pixels P may be disposed substantially in a matrix form.The display panel 100 may include two substrates opposite to each otherand a liquid crystal layer disposed between the two substrates.

The display panel 100 may be divided into a plurality of display blocks.In one exemplary embodiment, for example, the display panel 100 may bedivided into eight display blocks. In an exemplary embodiment, each ofthe display blocks may include a plurality of pixels. Longer sides ofthe display blocks may extend in a direction substantially parallel tothe gate line GL. Shorter sides of the display blocks may extend in adirection substantially parallel to the data line DL. The display blocksadjacent to each other may be disposed in the direction substantiallyparallel to the data line DL.

In an exemplary embodiment, the display panel 100 is divided into eightdisplay blocks as described above, but the invention is not limitedthereto.

In such an embodiment, the panel driving part 200 includes a frame rateconverter 210, a timing controller 220, a gate driver 230 and a datadriver 240.

The frame rate converter 210 receives input image data RGB (shown inFIG. 5) from an external apparatus (not shown). In an exemplaryembodiment, the input image data RGB may include red image data R, greenimage data G and blue image data B.

The frame rate converter 210 converts a frame rate of the input imagedata RGB to generate first image data FRGB (shown in FIG. 5). The firstimage data FRGB may have a frame rate twice the frame rate of the inputimage data RGB. In one exemplary embodiment, for example, the inputimage data RGB has the frame rate of about 120 hertz (Hz), and the firstimage data FRGB has the frame rate of about 240 Hz.

In an exemplary embodiment, when the input image data RGB includes aleft image and a right image, the first image data FRGB includes twoleft images and two right images.

The frame rate converter 210 may copy the left image and the rightimage. In an exemplary embodiment, the frame rate converter 210 mayoperate a motion compensation of the left and right images.

The frame rate converter 210 outputs the first image data FRGB to thetiming controller 220.

In an exemplary embodiment, the timing controller 220 receives an inputcontrol signal from outside. In an alternative exemplary embodiment, thetiming controller 220 may receive the input control signal from theframe rate converter 210. The input control signal may include a masterclock signal, a data enable signal, a vertical synchronizing signal anda horizontal synchronizing signal, for example.

The timing controller 220 generates a first control signal forcontrolling a driving timing of the gate driver 230, a second controlsignal for controlling a driving timing of the data driver 240 and athird control signal for controlling a driving timing of the lightsource driver 400.

The timing controller 220 outputs the first control signal to the gatedriver 230. The timing controller 220 outputs the second control signalto the data driver 240. The timing controller 220 outputs the thirdcontrol signal to the light source driver 400.

The first control signal may include a vertical start signal and a gateclock signal. The second control signal may include a horizontal startsignal, a load signal and a polarity inverting signal.

The timing controller 220 receives the first image data FRGB from theframe rate converter 210. The timing controller 220 converts the firstimage data FRGB to generate converted image data. The timing controller220 outputs the converted image data to the data driver 240.

In an exemplary embodiment, the timing controller 220 may control anoperation of the light converting glasses 500 based on an imagedisplayed on the display panel 100.

An image processing of the timing controller 220 will be described laterin detail referring to FIG. 5.

The gate driver 230 receives the first control signal from the timingcontroller 220. The gate driver 230 generates a gate signal for drivingthe gate line GL in response to the first control signal. The gatedriver 230 outputs the gate signal to the gate line GL.

The data driver 240 receives the second control signal and the convertedimage data from the timing controller 220. The data driver 240 convertsthe converted image data into a data voltage in an analog form inresponse to the second control signal. The data driver 240 outputs thedata voltage to the data line DL.

An image processing of the data driver 240 will be described later indetail referring to FIG. 6.

The light source part 300 provides light to the display panel 100. Thelight source part 300 may be a backlight assembly disposed under thedisplay panel 100.

In an exemplary embodiment, the light source part 300 may be a directtype backlight assembly including a plurality of light sources disposedunder the display panel 100. In an alternative exemplary embodiment, thelight source part 300 may be an edge type backlight assembly including aplurality of light sources corresponding to an edge portion of thedisplay panel 100 and a light guide plate.

The light source part 300 may be divided into a plurality of lightemitting blocks. In one exemplary embodiment, for example, the lightsource part 300 may be divided into eight light emitting blocks. Each ofthe light emitting blocks may include one or more light sources. Longersides of the light emitting blocks may extend in the directionsubstantially parallel to the gate line GL. Shorter sides of the lightemitting blocks may extend in the direction substantially parallel tothe data line DL. The light emitting blocks adjacent to each other maybe disposed in the direction substantially parallel to the data line DL.

In an exemplary embodiment, the light source part 300 is divided intoeight light emitting blocks, but the invention is not limited thereto.

The light emitting blocks may sequentially provide light to the displayblocks along a scanning direction of the display blocks. The scanningdirection of the display blocks may be substantially parallel to thedata line DL. The light emitting blocks may correspond to the displayblocks, respectively. In one exemplary embodiment, for example, a firstlight emitting block provides the light to a first display block. Asecond light emitting block provides the light to a second displayblock.

In an exemplary embodiment, the light source part 300 is divided into aplurality of light emitting blocks, but the invention is not limitedthereto. In an exemplary embodiment, the light source part 300 may bedriven in a blinking type, in which all of the light sources of thelight source part 300 are simultaneously turned on and off. In anotheralternative exemplary embodiment, the light source part 300 may becontinuously turned on.

The light source driver 400 receives the third control signal from thetiming controller 220. The light source driver 400 drives the lightsource part 300 in response to the third control signal. The lightsource driver 400 may be connected to the panel driver 200.

In an exemplary embodiment, the light source driver 400 may control thelight source part 300 such that the light emitting blocks aresequentially turned on along the scanning direction of the displayblocks. Turned-on durations of the adjacent light emitting blocks mayoverlap each other.

The light converting glasses 500 includes a left glass 510 and a rightglass 520. In an exemplary embodiment, the light converting glasses 500may be shutter glasses which selectively open and close the left glass510 and the right glass 520 to convert a two-dimensional (“2D”) imageinto a three-dimensional (“3D”) image.

The light converting glasses 500 may selectively open and close the leftglass 510 and the right glass 520 in response to a shutter controlsignal received from the timing control signal 220.

The light converting glasses 500 functions as a light convertingelement, which selectively or totally blocks light, to convert the 2Dimage into the 3D image.

In an exemplary embodiment, a retarder (not shown) unit may be disposedon the display panel 100 as the light converting element. The retarderunit may include one of a patterned retarder and an active retarder. Theretarder unit may selectively transmit polarized light of the imagedisplayed in the pixel. In an exemplary embodiment, the polarized lightmay be selectively transmitted by a second light converting element. Insuch an embodiment, the second light converting element may bepolarizing glasses.

In an exemplary embodiment, the retarder unit may polarize a left imageor a right image by the timing controller, the left glass 510 maytransmit the polarized left image, and the right glass 520 may transmitthe polarized right image. The retarder unit may be an active retarderunit which changes a polarizing characteristic according to a frame ofthe image displayed on the display panel 100.

FIG. 2 is a timing diagram illustrating an exemplary embodiment of imagedata applied to the display panel 100 of FIG. 1. FIG. 3 is a conceptualdiagram for explaining an exemplary embodiment of a method of displayingthe 3D image using the display apparatus of FIG. 1. FIG. 4 is a signaltiming diagram for explaining an exemplary embodiment of a method ofdisplaying the 3D image using the display apparatus of FIG. 1.

Referring to FIGS. 1 to 4, the display panel 100, the light source part300 and the light converting glasses 500 may be synchronized with oneanother.

In an exemplary embodiment of the method of displaying the 3D image, aleft image L and a right image R are applied to a pixel of the displaypanel 100 during a normal data application period. Converted images LCand RC are applied to the pixel of the display panel 100 during aconverted data application period, which is prior to the normal dataapplication period. The converted images LC and RC have grayscale valuesless than grayscale values of the left and right images L and R.

As shown in FIG. 2, the display panel 100 sequentially displays theconverted left image LC, the left image L, the converted right image RCand the right image R. In FIG. 2, Vcom denotes a common voltage, whichis applied to a common electrode of the display panel. The convertedleft image LC is generated based on the left image L. The converted leftimage LC has a grayscale value less than a grayscale value of the leftimage L. The left image L has a grayscale value corresponding to animage to be viewed at a left eye of a viewer. The converted right imageRC is generated based on the right image R. The converted right image RChas a grayscale value less than a grayscale value of the right image R.The right image R has a grayscale value corresponding to an image to beviewed at a right eye of the viewer. Each of the converted left imageLC, the left image L, the converted right image RC and the right image Ris displayed on the pixel of the display panel 100 corresponding to aframe 1F.

In an exemplary embodiment, the light source part 300 includes the lightemitting blocks. The light emitting blocks are sequentially turned onalong the scanning direction of the display panel 100. The lightemitting blocks sequentially provide light to the display blocks of thedisplay panel 100. In one exemplary embodiment, for example, the displaypanel 100 includes eight display blocks, e.g., a first to eight displayblocks DB1 to DB8, and the light source part 300 includes eight lightemitting blocks, but not being limited thereto.

Open and close times of the light converting glasses 500 are adjustedcorresponding to the left image L and the right image R.

FIG. 4 shows an image voltage of a pixel in each of the display blocksDB1 to DB8 based on a response time of a liquid crystal layer. In FIG.4, first and second left images L1 and L2 have relatively high grayscalevalues, and the right image R1 has a relatively low grayscale value.

During a first frame F1, voltages corresponding to a first convertedleft image LC1 are sequentially applied to the first to eight displayblocks DB1 to DB8 along the scanning direction. The first converted leftimage LC1 is generated based on the first left image L1 to have agrayscale value less than a grayscale value of the first left image L1.

During a second frame F2, voltages corresponding to the first left imageL1 are sequentially applied to the first to eight display blocks DB1 toDB8 along the scanning direction.

During a third frame F3, voltages corresponding to a first convertedright image RC1 are sequentially applied to the first to eight displayblocks DB1 to DB8 along the scanning direction. The first convertedright image RC1 is generated based on the first right image R1 to have agrayscale value less than a grayscale value of the first right image R1.

During a fourth frame F4, voltages corresponding to the first rightimage R1 are sequentially applied to the first to eight display blocksDB1 to DB8 along the scanning direction.

During a fifth frame F5, voltages corresponding to a second convertedleft image LC2 are sequentially applied to the first to eight displayblocks DB1 to DB8 along the scanning direction. The second convertedleft image LC2 is generated based on the second left image L2 to have agrayscale value less than a grayscale value of the second left image L2.

During a sixth frame F6, voltages corresponding to the second left imageL2 are sequentially applied to the first to eight display blocks DB1 toDB8 along the scanning direction.

In a first pixel in the first display block DB1, during a first periodP1, a voltage corresponding to the first converted left image LC1 isapplied to the first pixel such that the first pixel displays the firstconverted left image LC1. During a second period P2, a voltagecorresponding to the first left image L1 is applied to the first pixelsuch that the first pixel displays the first left image L1. During athird period P3, a voltage corresponding to the first converted rightimage RC1 is applied to the first pixel such that the first pixeldisplays the first converted right image RC1. During a fourth period P4,a voltage corresponding to the first right image R1 is applied to thefirst pixel such that the first pixel displays the first right image R1.During a fifth period P5, a voltage corresponding to the secondconverted left image LC2 is applied to the first pixel such that thefirst pixel displays the second converted left image LC2. During a sixthperiod P6, a voltage corresponding to the second left image L2 isapplied to the first pixel such that the first pixel displays the secondleft image L2.

The second display block DB2 has a driving timing delayed with respectto a driving timing of the first display block DB1. In a second pixel inthe second display block DB2, during a first period P1, a voltagecorresponding to the first converted left image LC1 is applied to thesecond pixel such that the second pixel displays the first convertedleft image LC1. During a second period P2, a voltage corresponding tothe first left image L1 is applied to the second pixel such that thesecond pixel displays the first left image L1. During a third period P3,a voltage corresponding to the first converted right image RC1 isapplied to the second pixel such that the second pixel displays thefirst converted right image RC1. During a fourth period P4, a voltagecorresponding to the first right image R1 is applied to the second pixelsuch that the second pixel displays the first right image R1. During afifth period P5, a voltage corresponding to the second converted leftimage LC2 is applied to the second pixel such that the second pixeldisplays the second converted left image LC2. During a sixth period P6,a voltage corresponding to the second left image L2 is applied to thesecond pixel such that the second pixel displays the second left imageL2.

In a similar way as described above, the third to eighth display blocksDB3 to DB8 are sequentially driven.

The light source part 300 provides light to the first to eighth displayblocks DB1 to DB8 synchronized with the scanning driving of the first toeighth display blocks DB1 to DB8.

The light source part 300 temporally provides light to the pixels in thesecond period P2 and the fourth period P4. The light source part 300temporally provides light to the pixels when the pixels display the leftand right images L and R to be viewed at the left and right eyes of theviewer.

Open and close times of the light converting glasses 500 are adjustedcorresponding to the left image L and the right image R. The left glass510 is turned off during the first frame F1, the fourth frame F4 and thefifth frame F5. The left glass 510 is turned on during the second frameF2, the third frame F3 and the sixth frame F6. The right glass 520 isturned on during the first frame F1, the fourth frame F4 and the fifthframe F5. The right glass 520 is turned off during the second frame F2,the third frame F3 and the sixth frame F6.

During the first period P1, the first converted left image LC1 isapplied to the pixel prior to applying the first left image L1, which isthe image to be viewed at the left eye of the viewer, such that thefirst converted left image LC1 pretilts the liquid crystal layercorresponding to the pixel. Thus, during the second period P2, the pixelmay rapidly display the first left image L1 to be viewed at the left eyeof the viewer such that a luminance of the display panel 100 increases.

During the third period P3, the first converted right image RC1 having agrayscale value less than the grayscale value of the first right imageR1, which is the image to be viewed at right left eye of the viewer, isapplied to the pixel. Thus, during the fourth period P4, the pixel mayrapidly display the first right image R1 to be viewed at the right eyeof the viewer such that a crosstalk of the 3D image is effectivelyprevented.

During the fifth period P5, the second converted left image LC2 having agrayscale value less than a grayscale value of the second left image L2,which is an image to be viewed at the left eye of the viewer, is appliedto the pixel. Thus, a crosstalk of the 3D image due to leakage lightbetween the light emitting blocks is effectively prevented.

FIG. 5 is a block diagram illustrating an exemplary embodiment of thetiming controller 220 of FIG. 1.

Referring to FIGS. 1 to 5, the timing controller 220 may include anadaptive color correction (“ACC”) part 222, a dynamic capacitancecompensation (“DCC”) part 224 and a grayscale converting part 226.

The ACC part 222 operates adaptive color correction to the first imagedata FRGB. The ACC part 222 compensates the first image data FRGB usinga gamma curve.

The DCC part 224 operates dynamic capacitance compensation, whichcompensates a grayscale data of a current frame data using a previousframe data and the current frame data. In an exemplary embodiment, thefirst image data FRGB includes two duplicated left images and twoduplicated right images such that the DCC part 224 may operate thedynamic capacitance compensation in each two frames.

In one exemplary embodiment, a grayscale value of the left image L maybe generated by comparing an input left image of the current frame to aninput right image or an input left image of the previous frame. Agrayscale value of the right image R may be generated by comparing aninput right image of the current frame to an input left image or aninput right image of the previous frame. In an exemplary embodiment,when the first converted left image LC1, the first left image L1, thefirst converted right image RC1 and the first right image R1, aresequentially displayed on the pixel of the display panel, and then thesecond converted left image LC2, the second left image L2, the secondconverted right image RC2 and the second right image R2 are sequentiallydisplayed on the pixel of the display panel, the grayscale value of thesecond left image L2 may be generated by comparing a grayscale value ofa second input left image corresponding to the second left image L2 to agrayscale value of a first input right image corresponding to the firstright image R1. In such an embodiment, the grayscale value of the secondright image R2 may be generated by comparing a grayscale value of asecond input right image corresponding to the second right image R2 to agrayscale value of a second input left image corresponding to the secondleft image L2.

In an exemplary embodiment, a position of the ACC part 222 and the DCCpart 224 may be switched to each other. Accordingly, in such anembodiment, an operation sequence of the ACC and the DCC may be switchedto each other.

The grayscale converting part 226 generates the converted left image LChaving a grayscale value less than the grayscale value of the left imageL based on the left image L. The grayscale converting part 226 generatesthe converted right image RC having a grayscale value less than thegrayscale value of the right image R based on the right image R. In anexemplary embodiment, when the left image L and the right image R havezero grayscale value, the converted left image LC and the convertedright image RC may have grayscale values substantially the same as thegrayscale values of the left image L and the right image R. In such anembodiment, when the left image L and the right image R have thegrayscale values substantially the same as each other, the convertedleft image LC and the converted right image RC may have the grayscalevalues substantially the same as each other.

In an exemplary embodiment of the invention, the grayscale convertingpart 226 may generate the converted left and right images LC and RC bymultiplying the grayscale values of the left and right images L and R bya converting value. In such an embodiment, the converting value is lessthan one. In one exemplary embodiment, for example, the left image L hasthe grayscale value of 256 and the converting value is 0.75 such thatthe converted left image LC may have the grayscale value of 192.

In an exemplary embodiment, the grayscale converting part 226 mayinclude a multiplexer circuit to multiply the grayscale values of theleft and right images L and R by the converting value.

In an exemplary embodiment, the converting value may be determined basedon the grayscale values of the left and right images L and R. In anexemplary embodiment, the converting value may be controlled by a user.

In an exemplary embodiment of the invention, the grayscale convertingpart 226 may generate the converted left and right images LC and RCusing a lookup table including the grayscale values corresponding to thegrayscale values of the left and right images L and R. In an exemplaryembodiment, the timing controller 200 may further include a memory (notshown) that stores the lookup table.

The grayscale converting part 226 outputs the converted left image LC,the left image L, the converted right image RC and the right image R tothe data driver 240.

FIG. 6 is a block diagram illustrating an exemplary embodiment of thedata driver 240 of FIG. 1.

Referring to FIG. 6, the data driver 240 includes a shift register 242,a latch 244, a signal processor 246 and a buffer 248. The shift register242 outputs a latch pulse to the latch 244. The latch 244 temporallystores the converted left image LC, the left image L, the convertedright image RC and the right image R, and outputs the converted leftimage LC, the left image L, the converted right image RC and the rightimage R to the signal processor 246. The signal processor 246 convertsthe converted left image LC, the left image L, the converted right imageRC and the right image R in a digital form to data voltages in an analogform based on the gamma reference voltages, and outputs the datavoltages to the buffer 248. The buffer 248 compensates the data voltagesto have uniform levels, and outputs the data voltages to the data linesDL.

According to an exemplary embodiment, a luminance of the display panel100 substantially increases, and a crosstalk of the 3D image iseffectively prevented such that display quality of the 3D image isimproved.

FIG. 7 is a timing diagram illustrating image data applied to a displaypanel of an alternative exemplary embodiment of a display apparatusaccording to the invention. FIG. 8 is a conceptual diagram forexplaining an exemplary embodiment of a method of displaying a 3D imageusing the display apparatus of FIG. 7. FIG. 9 is a signal timing diagramfor explaining an exemplary embodiment of a method of displaying the 3Dimage using the display apparatus of FIG. 7.

A display apparatus and a method of displaying the 3D image of FIG. 9 issubstantially the same as the display apparatus and the method ofdisplaying the 3D image of FIGS. 1 to 6 except for the converted leftimage LC and the converted right image RC. Thus, the same referencecharacters will be used to refer to the same or like elements as thosedescribed in the exemplary embodiment of FIGS. 1 to 6, and anyrepetitive detailed description thereof will be omitted or simplified.

Referring to FIGS. 1, 7 and 9, the display apparatus includes a displaypanel 100, a panel driver 200, a light source part 300, a light sourcedriver 400 and light converting glasses 500.

The display panel 100, the light source part 300 and the lightconverting glasses 500 may be synchronized with one another.

In an exemplary embodiment of the method of displaying the 3D image, aleft image L and a right image R are applied to a pixel of the displaypanel 100 during a normal data application period. Converted images LCand RC are applied to the pixel of the display panel 100 during aconverted data application period, which is prior to the normal dataapplication period. The converted images LC and RC have grayscale valuesgreater than grayscale values of the left and right images L and R.

In such an embodiment, as shown in FIG. 7, the display panel 100sequentially displays the converted left image LC, the left image L, theconverted right image RC and the right image R. In FIG. 7, Vcom denotesa common voltage, which is applied to a common electrode of the displaypanel. The converted left image LC is generated based on the left imageL. The converted left image LC has a grayscale value greater than agrayscale value of the left image L. The left image L has a grayscalevalue corresponding to the image to be viewed at a left eye of a viewer.The converted right image RC is generated based on the right image R.The converted right image RC has a grayscale value greater than agrayscale value of the right image R. The right image R has a grayscalecorresponding to the image to be viewed at a right eye of the viewer.

Each of the converted left image LC, the left image L, the convertedright image RC and the right image R is displayed on the pixel of thedisplay panel 100 corresponding to a frame 1F.

The light source part 300 includes the light emitting blocks. The lightemitting blocks are sequentially turned on along the scanning directionof the display panel 100. The light emitting blocks sequentially providelight to the display blocks of the display panel 100. In an exemplaryembodiment, the display panel 100 includes eight display blocks, e.g.,the first to eighth display blocks DB1 to DB8, and the light source part300 includes eight light emitting blocks.

Open and close times of the light converting glasses 500 are adjustedcorresponding to the left image L and the right image R.

In a first pixel in the first display block DB1, during a first periodP1, a voltage corresponding to the first converted left image LC1 isapplied to the first pixel such that the first pixel displays the firstconverted left image LC1. During a second period P2, a voltagecorresponding to the first left image L1 is applied to the first pixelsuch that the first pixel displays the first left image L1. During athird period P3, a voltage corresponding to the first converted rightimage RC1 is applied to the first pixel such that the first pixeldisplays the first converted right image RC1. During a fourth period P4,a voltage corresponding to the first right image R1 is applied to thefirst pixel such that the first pixel displays the first right image R1.During a fifth period P5, a voltage corresponding to the secondconverted left image LC2 is applied to the first pixel such that thefirst pixel displays the second converted left image LC2. During a sixthperiod P6, a voltage corresponding to the second left image L2 isapplied to the first pixel such that the first pixel displays the secondleft image L2.

The second display block DB2 has a driving timing delayed with respectto a driving timing of the first display block DB1. In a similar way asdescribed above, the third to eighth display blocks DB3 to DB8 aresequentially driven.

During the first period P1, the first converted left image LC1 isapplied to the pixel prior to applying the first left image L1 which isthe image to be viewed at the left eye of the viewer such that the pixelis driven in an overshoot driving method. Thus, during the second periodP2, the pixel may rapidly display the first left image L1 to be viewedat the left eye of the viewer. Therefore, in such an embodiment, aluminance of the display panel 100 increases.

The grayscale converting part 226 of the timing controller 220 generatesthe converted left image LC having a grayscale value greater than thegrayscale value of the left image L based on the left image L. Thegrayscale converting part 226 generates the converted right image RChaving a grayscale value greater than the grayscale value of the rightimage R based on the right image R.

In an exemplary embodiment of the invention, the grayscale convertingpart 226 may generate the converted left and right images LC and RC bymultiplying the grayscale values of the left and right images L and R bya converting value. In such an embodiment, the converting value isgreater than one.

The converting value may be determined based on the grayscale values ofthe left and right images L and R. The converting value may be varied bya user.

In an exemplary embodiment of the invention, the grayscale convertingpart 226 may generate the converted left and right images LC and RCusing a lookup table including the grayscale values corresponding to thegrayscale values of the left and right images L and R.

According to an exemplary embodiment, a response time of the liquidcrystal layer increases such that a luminance of the display panel 100increases and luminance uniformity is improved. Thus, in such anembodiment, display quality of the 3D image is improved.

FIG. 10 is a conceptual diagram for explaining an exemplary embodimentof a method of displaying a 3D image using another alternative exemplaryembodiment of a display apparatus. FIG. 11 is a signal timing diagramfor explaining an exemplary embodiment of a method of displaying the 3Dimage using the display apparatus of FIG. 10.

A display apparatus and a method of displaying the 3D image of FIGS. 10and 11 is substantially the same as the display apparatus and the methodof displaying the 3D image shown in FIGS. 1 to 6 except for a sequenceof displaying the images LC, L, RC and R. Thus, the same referencecharacters will be used to refer to the same or like elements as thosedescribed in the exemplary embodiment of FIGS. 1 to 6, and anyrepetitive detailed description thereof will be omitted or simplified.

Referring to FIGS. 1, 10 and 11, the display apparatus includes adisplay panel 100, a panel driver 200, a light source part 300, a lightsource driver 400 and light converting glasses 500.

The display panel 100, the light source part 300 and the lightconverting glasses 500 may be synchronized with one another.

The display panel 100 sequentially displays the left image L, theconverted left image LC, the right image R and the converted right imageRC. The converted left image LC is generated based on the left image L.The converted left image LC has a grayscale value less than a grayscalevalue of the left image L. The left image L has a grayscalecorresponding to an image to be viewed at a left eye of a viewer. Theconverted right image RC is generated based on the right image R. Theconverted right image RC has a grayscale value less than a grayscalevalue of the right image R. The right image R has a grayscale valuecorresponding to an image to be viewed at a right eye of the viewer.

Each of the left image L, the converted left image LC, the right image Rand the converted right image RC is displayed on the pixel of thedisplay panel 100 corresponding to a frame 1F.

The light source part 300 includes the light emitting blocks. The lightemitting blocks are sequentially turned on along the scanning directionof the display panel 100. The light emitting blocks sequentially providelight to the display blocks of the display panel 100. In an exemplaryembodiment, the display panel 100 includes eight display blocks, e.g.,the first to eight display blocks DB1 to DB8, and the light source part300 includes eight light emitting blocks.

Open and close times of the light converting glasses 500 are adjustedcorresponding to the left image L and the right image R.

In a first pixel in the first display block DB1, during a first periodP1, a voltage corresponding to the first left image L1 is applied to thefirst pixel such that the first pixel displays the first left image L1.During a second period P2, a voltage corresponding to the firstconverted left image LC1 is applied to the first pixel such that thefirst pixel displays the first converted left image LC1. During a thirdperiod P3, a voltage corresponding to the first right image R1 isapplied to the first pixel such that the first pixel displays the firstright image R1. During a fourth period P4, a voltage corresponding tothe first converted right image RC1 is applied to the first pixel suchthat the first pixel displays the first converted right image RC1.During a fifth period P5, a voltage corresponding to the second leftimage L2 is applied to the first pixel such that the first pixeldisplays the second left image L2. During a sixth period P6, a voltagecorresponding to the second converted left image LC2 is applied to thefirst pixel such that the first pixel displays the second converted leftimage LC2.

The second display block DB2 has a driving timing delayed with respectto a driving timing of the first display block DB1. In a similar way asdescribed above, the third to eighth display blocks DB3 to DB8 aresequentially driven.

The light source part 300 temporally provides light to the pixels in anending portion of the first period P1 and a beginning portion of thesecond period P2. The light source part 300 temporally provides light tothe pixels in an ending portion of the third period P3 and a beginningportion of the fourth period P4.

In an exemplary embodiment, during the second period P2, the firstconverted left image LC1 having the grayscale value less than thegrayscales value of the first left image L1 is displayed such that acrosstalk decreases. In such an embodiment, a luminance of the displaypanel 100 increases when compared to a conventional display panel thatdisplays a black image during the second period P2.

According to an exemplary embodiment, a crosstalk of the 3D imagedecreases and a luminance of the display panel 100 increases such thatdisplay quality of the 3D image is improved.

FIG. 12 is a conceptual diagram for explaining an exemplary embodimentof a method of displaying a 3D image using another alternative exemplaryembodiment of a display apparatus.

A display apparatus and a method of displaying the 3D image of FIG. 12is substantially the same as the display apparatus and the method ofdisplaying the 3D image shown in FIGS. 1 to 6 except that the lightsource part 300 is continuously turned on. Thus, the same referencecharacters will be used to refer to the same or like elements as thosedescribed in the exemplary embodiment of FIGS. 1 to 6, and anyrepetitive detailed description thereof will be omitted or simplified.

Referring to FIGS. 1 and 12, the display apparatus includes a displaypanel 100, a panel driver 200, a light source part 300, a light sourcedriver 400 and light converting glasses 500.

The display panel 100 and the light converting glasses 500 may besynchronized with each other.

The display panel 100 sequentially displays the converted left image LC,the left image L, the converted right image RC and the right image R.The converted left image LC is generated based on the left image L. Theconverted left image LC has a grayscale value less than a grayscalevalue of the left image L. The left image L has a grayscale valuecorresponding to an image to be viewed at a left eye of a viewer. Theconverted right image RC is generated based on the right image R. Theconverted right image RC has a grayscale value less than a grayscalevalue of the right image R. The right image R has a grayscale valuecorresponding to an image to be viewed at a right eye of the viewer.Each of the converted left image LC, the left image L, the convertedright image RC and the right image R is displayed on the pixel of thedisplay panel 100 corresponding to a frame 1F.

The light source part 300 continuously provides light to the displaypanel 100.

Open and close times of the light converting glasses 500 are adjustedcorresponding to the left image L and the right image R. Both of a leftglass 510 and a right glass 520 of the light converting glasses 500 maybe turned off corresponding to a scanning time of the display panel 100.The close time of the left glass 510 partially overlap the close time ofthe right glass 520.

According to an exemplary embodiment, a luminance of the display panel100 increases, and a crosstalk of the 3D image is effectively preventedsuch that display quality of the 3D image is improved.

FIG. 13 is a block diagram illustrating a timing controller of analternative exemplary embodiment of a display apparatus. FIG. 14 is ablock diagram illustrating an exemplary embodiment of a data driver ofthe display apparatus of FIG. 13.

A display apparatus and a method of displaying the 3D image of FIGS. 13and 14 is substantially the same as the display apparatus and the methodof displaying the 3D image of the exemplary embodiment shown in FIGS. 1to 6 except that the data driver 240 generates the converted left andright images LC and RC. Thus, the same reference characters will be usedto refer to the same or like elements as those described in theexemplary embodiment of FIGS. 1 to 6, and any repetitive detaileddescription thereof will be omitted or simplified.

Referring to FIGS. 1, 13 and 14, the display apparatus includes adisplay panel 100, a panel driver 200, a light source part 300, a lightsource driver 400 and light converting glasses 500.

The display panel 100, the light source part 300 and the lightconverting glasses 500 may be synchronized with one another.

The display panel 100 sequentially displays the converted left image LC,the left image L, the converted right image RC and the right image R.The converted left image LC is generated based on the left image L. Theconverted left image LC has a grayscale value greater than a grayscalevalue of the left image L. The left image L has a grayscale valuecorresponding to an image to be viewed at a left eye of a viewer. Theconverted right image RC is generated based on the right image R. Theconverted right image RC has a grayscale value greater than a grayscalevalue of the right image R. The right image R has a grayscale valuecorresponding to an image to be viewed at a right eye of the viewer.

The panel driver 200 includes a frame rate converter 210, a timingcontroller 220, a gate driver 230 and a data driver 240.

The timing controller may include an ACC part 222 and a DCC part 224.

The ACC part 222 operates adaptive color correction to the first imagedata FRGB. The DCC part 224 operates dynamic capacitance compensation,which compensates a grayscale data of the current frame data using theprevious frame data and the current frame data.

The timing controller 220 outputs two duplicated left images L and L andtwo duplicated right images R and R to the data driver 240.

The data driver 240 includes a grayscale converting part 241, a shiftregister 242, a latch 244, a signal processor 246 and a buffer 248.

The grayscale converting part 241 generates the converted left image LChaving a grayscale value less than a grayscale value of the left image Lbased on the left image L. The grayscale converting part 241 generatesthe converted right image RC having a grayscale value less than theright image R based on the right image R.

In an exemplary embodiment of the invention, the grayscale convertingpart 241 may generate the converted left and right images LC and RC bymultiplying the grayscale values of the left and right images L and R bya converting value. In such an embodiment, the converting value is lessthan one.

The converting value may be determined based on the grayscale values ofthe left and right images L and R.

In an exemplary embodiment of the invention, the grayscale convertingpart 241 may generate the converted left and right images LC and RCusing a lookup table including the grayscale values corresponding to thegrayscale values of the left and right images L and R.

The grayscale converting part 241 outputs the converted left image LC,the left image L, the converted right image RC and the right image R tothe latch 244.

The shift register 242 outputs a latch pulse to the latch 244. The latch244 temporally stores the converted left image LC, the left image L, theconverted right image RC and the right image R and outputs the convertedleft image LC, the left image L, the converted right image RC and theright image R to the signal processor 246. The signal processor 246converts the converted left image LC, the left image L, the convertedright image RC and the right image R in a digital form to data voltagesin an analog form based on the gamma reference voltages and outputs thedata voltages to the buffer 248. The buffer 248 compensates the datavoltages to have uniform levels and outputs the data voltages to thedata lines DL.

According to an exemplary embodiment, a luminance of the display panel100 increases, and a crosstalk of the 3D image is effectively preventedsuch that display quality of the 3D image is improved.

FIG. 15 is a conceptual diagram for explaining an exemplary embodimentof a method of displaying a 3D image using another alternative exemplaryembodiment of a display apparatus. FIG. 16 is a signal timing diagramfor explaining an exemplary embodiment of a method of displaying the 3Dimage using the display apparatus of FIG. 15.

A display apparatus and a method of displaying the 3D image of FIGS. 14and 15 is substantially the same as the display apparatus and the methodof displaying the 3D image shown in FIGS. 1 to 6 except for a drivingmethod of the light converting glasses 500. Thus, the same referencecharacters will be used to refer to the same or like elements as thosedescribed in the exemplary embodiment of FIGS. 1 to 6, and anyrepetitive detailed description thereof will be omitted or simplified.

Referring to FIGS. 1, 15 and 16, the display apparatus includes adisplay panel 100, a panel driver 200, a light source part 300, a lightsource driver 400 and light converting glasses 500.

The display panel 100, the light source part 300 and the lightconverting glasses 500 may be synchronized with one another.

The display panel 100 sequentially displays the converted left image LC,the left image L, the converted right image RC and the right image R.The converted left image LC is generated based on the left image L. Theconverted left image LC has a grayscale value less than a grayscalevalue of the left image L. The left image L has a grayscale valuecorresponding to an image to be viewed at a left eye of a viewer. Theconverted right image RC is generated based on the right image R. Theconverted right image RC has a grayscale value less than a grayscalevalue of the right image R. The right image R has a grayscale valuecorresponding to an image to be viewed at a right eye of the viewer.

Each of the converted left image LC, the left image L, the convertedright image RC and the right image R is displayed on the pixel of thedisplay panel 100 corresponding to a frame 1F.

The light source part 300 includes the light emitting blocks. The lightemitting blocks are sequentially turned on along the scanning directionof the display panel 100. The light emitting blocks sequentially providelight to the display blocks of the display panel 100. In an exemplaryembodiment, the display panel 100 includes eight display blocks, e.g.,the first to eighth display blocks DB1 to DB8, and the light source part300 includes eight light emitting blocks.

Open and close times of the light converting glasses 500 are adjustedcorresponding to the left image L and the right image R. Both of a leftglass 510 and a right glass 520 of the light converting glasses 500 maybe turned on in a specific time point. The open time of the left glass510 partially overlap the open time of the right glass 520.

In FIG. 16, the left glass 510 is turned on during a second frame F2, athird frame F3 and a beginning portion of a fourth frame F4 and a sixthframe F6. The right glass 520 is turned on during a first frame F1, abeginning portion of the second frame F2, the fourth frame F4, a fifthframe F5 and a beginning portion of the sixth frame F6. Thus, both ofthe left and right glasses 510 and 520 are turned on the beginningportion of the second frame F2, the beginning portion of the fourthframe F4 and the beginning portion of the sixth frame F6.

In such an embodiment, a luminance of the display panel 100 increases,and a crosstalk of the 3D image is effectively prevented such thatdisplay quality of the 3D image is improved.

FIG. 17 is a conceptual diagram for explaining an exemplary embodimentof a method of displaying a 3D image using another alternative exemplaryembodiment of a display apparatus. FIG. 18 is a signal timing diagramfor explaining an exemplary embodiment of a method of displaying the 3Dimage using the display apparatus of FIG. 17.

A display apparatus and a method of displaying the 3D image of FIG. 17is substantially the same as the display apparatus and the method ofdisplaying the 3D image of the exemplary embodiment explained referringto FIGS. 1 to 6 except for a driving method of the light convertingglasses 500. Thus, the same reference characters will be used to referto the same or like elements as those described in the exemplaryembodiment of FIGS. 1 to 6, and any repetitive detailed descriptionthereof will be omitted or simplified.

Referring to FIGS. 1, 17 and 18, the display apparatus includes adisplay panel 100, a panel driver 200, a light source part 300, a lightsource driver 400 and light converting glasses 500.

The display panel 100, the light source part 300 and the lightconverting glasses 500 may be synchronized with one another.

The display panel 100 sequentially displays the converted left image LC,the left image L, the converted right image RC and the right image R.The converted left image LC is generated based on the left image L. Theconverted left image LC has a grayscale value less than a grayscalevalue of the left image L. The left image L has a grayscale valuecorresponding to an image to be viewed at a left eye of a viewer. Theconverted right image RC is generated based on the right image R. Theconverted right image RC has a grayscale value less than a grayscalevalue of the right image R. The right image R has a grayscale valuecorresponding to an image to be viewed at a right eye of the viewer.

Each of the converted left image LC, the left image L, the convertedright image RC and the right image R is displayed on the pixel of thedisplay panel 100 corresponding to a frame 1F.

The light source part 300 includes the light emitting blocks. The lightemitting blocks are sequentially turned on along the scanning directionof the display panel 100. The light emitting blocks sequentially providelight to the display blocks of the display panel 100. In an exemplaryembodiment, the display panel 100 includes eight display blocks, e.g.,the first to eighth display blocks DB1 to DB8, and the light source part300 includes eight light emitting blocks.

Open and close times of the light converting glasses 500 are adjustedcorresponding to the left image L and the right image R. Both of a leftglass 510 and a right glass 520 of the light converting glasses 500 maybe turned off in a specific time point. The close time of the left glass510 partially overlap the close time of the right glass 520.

In FIG. 18, the left glass 510 is turned off during a first frame F1, abeginning portion of a second frame F2, a fourth frame F4, a fifth frameF5 and beginning portion of a sixth frame F6. The right glass 520 isturned off during the second frame F2, a third frame F3, a beginningportion of the fourth frame F4, the sixth frame F6. Thus, both of theleft and right glasses 510 and 520 are turned off the beginning portionof the second frame F2, the beginning portion of the fourth frame F4 andthe beginning portion of the sixth frame F6.

In such an embodiment, a luminance of the display panel 100 increasesand a crosstalk of the 3D image is effectively prevented such thatdisplay quality of the 3D image is improved.

FIG. 19 is a block diagram illustrating an alternative exemplaryembodiment of a display apparatus according to the invention.

A display apparatus and a method of displaying the 3D image of FIG. 19is substantially the same as the display apparatus and the method ofdisplaying the 3D image shown in FIGS. 1 to 6 except that the displayapparatus includes a retarder unit 600 as a light converting element.Thus, the same reference characters will be used to refer to the same orlike elements as those described in the exemplary embodiment of FIGS. 1to 6, and any repetitive detailed description thereof will be omitted orsimplified.

Referring to FIG. 19, the display apparatus includes a display panel100, a panel driver 200, a light source part 300, a light source driver400, a retarder unit 600 and a retarder driver 700.

The display panel 100 includes a plurality of pixels P which displays animage.

The panel driving part 200 includes a frame rate converter 210, a timingcontroller 220, a gate driver 230 and a data driver 240.

The frame rate converter 210 receives input image data RGB from anexternal apparatus (not shown). The frame rate converter 210 converts aframe rate of the input image data RGB to generate first image dataFRGB. The frame rate converter 210 outputs the first image data FRGB tothe timing controller 220.

In an exemplary embodiment, the timing controller 220 receives an inputcontrol signal from outside. In an alternative exemplary embodiment, thetiming controller 220 may receive the input control signal from theframe rate converter 210.

The timing controller 220 generates a first control signal forcontrolling a driving timing of the gate driver 230, a second controlsignal for controlling a driving timing of the data driver 240 and athird control signal for controlling a driving timing of the lightsource driver 400.

The timing controller 220 outputs the first control signal to the gatedriver 230. The timing controller 220 outputs the second control signalto the data driver 240. The timing controller 220 outputs the thirdcontrol signal to the light source driver 400.

In such an embodiment, the timing controller 220 generates a retardercontrol signal for controlling the retarder unit 600 based on an imageto be displayed on the display panel 100. The timing controller 220outputs the retarder control signal to the retarder driver 700.

In an exemplary embodiment, the retarder unit is disposed on the displaypanel 100. The retarder unit selectively blocks the images on thedisplay panel 100 such that the retarder unit converts a 2D image into a3D image.

The retarder unit 600 may selectively blocks the images on the displaypanel 100 in response to the retarder control signal.

The display panel 100, the light source part 300 and the retarder unit600 may be synchronized with one another.

The display panel 100 sequentially displays the converted left image LC,the left image L, the converted right image RC and the right image R.The converted left image LC is generated based on the left image L. Theconverted left image LC has a grayscale value less than a grayscalevalue of the left image L. The left image L has a grayscale valuecorresponding to an image to be viewed at a left eye of a viewer. Theconverted right image RC is generated based on the right image R. Theconverted right image RC has a grayscale value less than a grayscalevalue of the right image R. The right image R has a grayscale valuecorresponding to an image to be viewed at a right eye of the viewer.

Each of the converted left image LC, the left image L, the convertedright image RC and the right image R is displayed on the pixel of thedisplay panel 100 corresponding to a frame 1F.

The light source part 300 includes the light emitting blocks. The lightemitting blocks are sequentially turned on along the scanning directionof the display panel 100. The light emitting blocks sequentially providelight to the display blocks of the display panel 100.

In an exemplary embodiment, the display panel 100 includes eight displayblocks, e.g., the first to eight display blocks DB1 to DB8, and thelight source part 300 includes eight light emitting blocks.

In an exemplary embodiment of the invention, the display apparatus mayfurther include light converting glasses including a left glass and aright glass. The retarder unit 600 may polarize the left image L suchthat the polarized left image L transmits the left glass when thedisplay panel 100 displays the left image L. The retarder unit 600 maypolarize the right image R such that the polarized right image Rtransmits the right glass when the display panel 100 displays the rightimage R.

An arrangement of retarders in the retarder unit 600 may be adjustedcorresponding to the left image L and the right image R.

In such an embodiment, a luminance of the display panel 100 increasesand a crosstalk of the 3D image is effectively such that display qualityof the 3D image is improved.

According to exemplary embodiments of the invention described herein,the display panel displays the converted left image and the convertedright image such that a crosstalk of the 3D image is effectivelyprevented and a luminance of the display panel increases such thatdisplay quality of the 3D image is improved.

The foregoing is illustrative of the invention and is not to beconstrued as limiting thereof. Although a few exemplary embodiments ofthe invention have been described, those skilled in the art will readilyappreciate that many modifications are possible in the exemplaryembodiments without materially departing from the novel teachings andadvantages of the invention. Accordingly, all such modifications areintended to be included within the scope of the invention as defined inthe claims. In the claims, means-plus-function clauses are intended tocover the structures described herein as performing the recited functionand not only structural equivalents but also equivalent structures.Therefore, it is to be understood that the foregoing is illustrative ofthe invention and is not to be construed as limited to the specificexemplary embodiments disclosed, and that modifications to the disclosedexemplary embodiments, as well as other exemplary embodiments, areintended to be included within the scope of the appended claims. Theinvention is defined by the following claims, with equivalents of theclaims to be included therein.

What is claimed is:
 1. A method of displaying a three-dimensional image,the method comprising: outputting a converted left image generated basedon a left image to a pixel of a display panel including a plurality ofdisplay blocks during a first period, wherein the converted left imagehas a grayscale value only less than a corresponding grayscale value ofthe left image; outputting the left image to the pixel of the displaypanel during a second period which immediately follows the first period;sequentially and temporally providing light to all of the plurality ofdisplay blocks of the display panel in the second period; outputting aconverted right image generated based on a right image to the pixel ofthe display panel during a third period, wherein the converted rightimage has a grayscale value only less than a corresponding grayscalevalue of the right image; outputting the right image to the pixel of thedisplay panel during a fourth period which immediately follows the thirdperiod; sequentially and temporally providing the light to all of theplurality of display blocks in the fourth period; and adjusting anoperation of light converting glasses including a left glass and a rightglass based on a first control signal, a second control signal, the leftimage and the right image, wherein an off-time of the first controlsignal for the left glass partially overlaps an off-time of the secondcontrol signal for the right glass, wherein the converted left image isoutputted to all of pixels of the display panel during the first periodand the left image is outputted to all of the pixels of the displaypanel during the second period so that a length of the first period issame as a length of the second period, and wherein the converted rightimage is outputted to all of the pixels of the display panel during thethird period and the right image is outputted to all of the pixels ofthe display panel during the fourth period so that a length of the thirdperiod is same as a length of the fourth period.
 2. The method of claim1, wherein the light is provided to the plurality of display blocksalong a scanning direction of the display blocks.
 3. The method of claim1, wherein the light converting glasses selectively blocks lightcorresponding to the left image and the right image.
 4. The method ofclaim 1, wherein the converted left and right images are generated bymultiplying the grayscale values of the left and right images by aconverting value.
 5. The method of claim 4, wherein the converting valueis determined based on the grayscale values of the left and rightimages.
 6. The method of claim 1, wherein the converted left and rightimages are generated using a lookup table including a plurality ofgrayscale values corresponding to the grayscale values of the left andright images.
 7. A method of displaying a three-dimensional image, themethod comprising: outputting a converted left image generated based ona left image to a pixel of a display panel including a plurality ofdisplay blocks during a first period, wherein the converted left imagehas a grayscale value only greater than a corresponding grayscale valueof the left image; outputting the left image to the pixel of the displaypanel during a second period which immediately follows the first period;sequentially and temporally providing light to all of the plurality ofdisplay blocks of the display panel in the second period; outputting aconverted right image generated based on a right image to the pixel ofthe display panel during a third period, wherein the converted rightimage has a grayscale value only greater than a corresponding grayscalevalue of the right image; outputting the right image to the pixel of thedisplay panel during a fourth period which immediately follows the thirdperiod; sequentially and temporally providing the light to all of theplurality of display blocks in the fourth period; and adjusting anoperation of light converting glasses including a left glass and a rightglass based on a first control signal, a second control signal, the leftimage and the right image, wherein an off-time of the first controlsignal for the left glass partially overlaps an off-time of the secondcontrol signal for the right glass, wherein the converted left image isoutputted to all of pixels of the display panel during the first periodand the left image is outputted to all of the pixels of the displaypanel during the second period so that a length of the first period issame as a length of the second period, and wherein the converted rightimage is outputted to all of the pixels of the display panel during thethird period and the right image is outputted to all of the pixels ofthe display panel during the fourth period so that a length of the thirdperiod is same as a length of the fourth period.
 8. The method of claim7, wherein the light is provided to the plurality of display blocksalong a scanning direction of the display blocks.
 9. The method of claim7, wherein the light converting glasses selectively blocks lightcorresponding to the left image and the right image.
 10. A method ofdisplaying a three-dimensional image, the method comprising: outputtinga left image to a pixel of a display panel including a plurality ofdisplay blocks during a first period; outputting a converted left imagegenerated based on the left image to the pixel of the display panelduring a second period which immediately follows the first period,wherein the converted left image has a grayscale value only less than acorresponding grayscale value of the left image; sequentially andtemporally providing light to all of the plurality of display blocks ofthe display panel in an ending portion of the first period and abeginning portion of the second period; outputting a right image to thepixel of the display panel during a third period; outputting a convertedright image generated based on the right image to the pixel of thedisplay panel during a fourth period which immediately follows the thirdperiod, wherein the converted right image has a grayscale value onlyless than a corresponding grayscale value of the right image;sequentially and temporally providing the light to all of the pluralityof display blocks in an ending portion of the third period and abeginning portion of the fourth period; and adjusting an operation oflight converting glasses including a left glass and a right glass basedon a first control signal, a second control signal, the left image andthe right image, wherein an off-time of the first control signal for theleft glass partially overlaps an off-time of the second control signalfor the right glass, wherein the converted left image is outputted toall of pixels of the display panel during the second period and the leftimage is outputted to all of the pixels of the display panel during thefirst period so that a length of the first period is same as a length ofthe second period, and wherein the converted right image is outputted toall of the pixels of the display panel during the fourth period and theright image is outputted to all of the pixels of the display panelduring the third period so that a length of the third period is same asa length of the fourth period.
 11. The method of claim 10, wherein thelight is provided to the plurality of display blocks along a scanningdirection of the display blocks.
 12. The method of claim 10, wherein thelight converting glasses selectively blocks light corresponding to theleft image and the right image.
 13. A display apparatus comprising: adisplay panel including a pixel and a plurality of display blocks; apanel driver which outputs a converted left image generated based on aleft image to the pixel of the display panel during a first period,outputs the left image to the pixel of the display panel during a secondperiod which immediately follows the first period, outputs a convertedright image generated based on a right image to the pixel of the displaypanel during a third period, and outputs the right image to the pixel ofthe display panel during a fourth period which immediately follows thethird period; a light source part which provides light to the displaypanel; and light converting glasses including a left glass and a rightglass, an operation of the light converting glasses being adjusted basedon a first control signal, a second control signal, the left image andthe right image, wherein the converted left image has a grayscale valueonly less than a corresponding grayscale value of the left image, andthe converted right image has a grayscale value only less than acorresponding grayscale value of the right image, wherein the lightsource part sequentially and temporally provides the light to all of theplurality of display blocks in the second period and sequentially andtemporally provides the light to all of the plurality of display blocksin the fourth period, wherein an off-time of the first control signalfor the left glass partially overlaps an off-time of the second controlsignal for the right glass, wherein the converted left image isoutputted to all of pixels of the display panel during the first periodand the left image is outputted to all of the pixels of the displaypanel during the second period so that a length of the first period issame as a length of the second period, and wherein the converted rightimage is outputted to all of the pixels of the display panel during thethird period and the right image is outputted to all of the pixels ofthe display panel during the fourth period so that a length of the thirdperiod is same as a length of the fourth period.
 14. The displayapparatus of claim 13, wherein the light source part sequentiallyprovides the light to the display blocks along a scanning direction ofthe display blocks.
 15. The display apparatus of claim 13, wherein thelight converting glasses selectively blocks light corresponding to theleft image and the right image.
 16. The display apparatus of claim 13,wherein the panel driver generates the converted left and right imagesby multiplying the grayscale values of the left and right images by aconverting value.
 17. The display apparatus of claim 16, wherein theconverting value is determined based on the grayscale values of the leftand right images.
 18. The display apparatus of claim 13, wherein thepanel driver generates the converted left and right images using alookup table including a plurality of grayscale values corresponding tothe grayscale values of the left and right images.
 19. The displayapparatus of claim 13, wherein the panel driver includes a timingcontroller generating the converted left and right images.
 20. Thedisplay apparatus of claim 13, wherein the panel driver comprises a datadriver which generates the converted left and right images.
 21. Adisplay apparatus comprising: a display panel including a pixel and aplurality of display blocks; and a panel driver which outputs aconverted left image generated based on a left image to the pixel of thedisplay panel during a first period, outputs the left image to the pixelof the display panel during a second period which immediately followsthe first period, outputs a converted right image generated based on aright image to the pixel of the display panel during a third period, andoutputs the right image to the pixel of the display panel during afourth period which immediately follows the third period; a light sourcepart which provides light to the display panel; and light convertingglasses including a left glass and a right glass, an operation of thelight converting glasses being adjusted based on a first control signal,a second control signal, the left image and the right image, wherein theconverted left image has a grayscale value only greater than acorresponding grayscale value of the left image, and the converted rightimage has a grayscale value only greater than a corresponding grayscalevalue of the right image, wherein the light source part sequentially andtemporally provides the light to all of the plurality of display blocksin the second period and sequentially and temporally provides the lightto all of the plurality of display blocks in the fourth period, andwherein an off-time of the first control signal for the left glasspartially overlaps an off-time of the second control signal for theright glass, wherein the converted left image is outputted to all ofpixels of the display panel during the first period and the left imageis outputted to all of the pixels of the display panel during the secondperiod so that a length of the first period is same as a length of thesecond period, and wherein the converted right image is outputted to allof the pixels of the display panel during the third period and the rightimage is outputted to all of the pixels of the display panel during thefourth period so that a length of the third period is same as a lengthof the fourth period.
 22. The display apparatus of claim 21, wherein thelight source part sequentially provides the light to the display blocksalong a scanning direction of the display blocks.
 23. The displayapparatus of claim 21, wherein the light converting glasses selectivelyblocks light corresponding to the left image and the right image.
 24. Adisplay apparatus comprising: a display panel including a pixel and aplurality of display blocks; a panel driver which outputs a left imageto the pixel of the display panel during a first period, outputs aconverted left image generated based on the left image to the pixel ofthe display panel during a second period which immediately follows thefirst period, outputs a right image to the pixel of the display panelduring a third period, and outputs a converted right image generatedbased on the right image to the pixel of the display panel during afourth period which immediately follows the third period; a light sourcepart which provides light to the display panel; and light convertingglasses including a left glass and a right glass, an operation of thelight converting glasses being adjusted based on a first control signal,a second control signal, the left image and the right image, wherein theconverted left image has a grayscale value only less than acorresponding grayscale value of the left image, and the converted rightimage has a grayscale value only less than a corresponding grayscalevalue of the right image, wherein the light source part sequentially andtemporally provides the light to all of the plurality of display blocksin an ending portion of the first period and a beginning portion of thesecond period and sequentially and temporally provides the light to allof the plurality of display blocks in an ending portion of the thirdperiod and a beginning portion of the fourth period, wherein an off-timeof the first control signal for the left glass partially overlaps anoff-time of the second control signal for the right glass, wherein theconverted left image is outputted to all of pixels of the display panelduring the second period and the left image is outputted to all of thepixels of the display panel during the first period so that a length ofthe first period is same as a length of the second period, and whereinthe converted right image is outputted to all of the pixels of thedisplay panel during the fourth period and the right image is outputtedto all of the pixels of the display panel during the third period sothat a length of the third period is same as a length of the fourthperiod.
 25. The display apparatus of claim 24, wherein the light sourcepart sequentially provides the light to the display blocks along ascanning direction of the display blocks.
 26. The display apparatus ofclaim 24, wherein the light converting glasses selectively blocks lightcorresponding to the left image and the right image.
 27. A displayapparatus comprising: a display panel including a pixel and a pluralityof display blocks; a panel driver which applies one of left and rightimages to the pixel during a second period and applies a converted imageof the one of the left and right images to the pixel during a firstperiod prior to the second period which immediately follows the firstperiod; a light source part which provides light to the display panel;and light converting glasses including a left glass and a right glass,an operation of the light converting glasses being adjusted based on afirst control signal, a second control signal, the left image and theright image, wherein the converted image of the one of the left andright images has a grayscale value only less than a correspondinggrayscale value of the one of the left and right images, wherein thelight source part sequentially and temporally provides the light to allof the plurality of display blocks in the second period, wherein anoff-time of the first control signal for the left glass partiallyoverlaps an off-time of the second control signal for the right glass,wherein the converted image of the one of the left and right images isoutputted to all of pixels of the display panel during the first periodand one of the left and right images is outputted to all of the pixelsof the display panel during the second period so that a length of thefirst period is same as a length of the second period.
 28. The displayapparatus of claim 27, wherein the panel driver generates the convertedimage by multiplying the grayscale value of the one of the left andright images by a converting value.
 29. The display apparatus of claim28, wherein the converting value is determined based on the grayscalevalue of the one of the left and right images.
 30. The display apparatusof claim 27, wherein the panel driver generates the converted image ofthe one of the left and right images using a lookup table which stores agrayscale value corresponding to the grayscale value of the one of theleft and right images.
 31. The display apparatus of claim 27, furthercomprising: a light source driver which drives the light source part.32. The display apparatus of claim 31, wherein the light source driveris connected to the panel driver, and the light source driver drives thelight source part synchronized with an image displayed on the displaypanel.
 33. The display apparatus of claim 32, wherein the light sourcepart comprises a plurality of light emitting blocks, and the lightemitting blocks are sequentially driven along a scanning direction ofthe image displayed on the display panel.
 34. The display apparatus ofclaim 27, wherein the light converting glasses selectively or totallyblocks light corresponding to one of the left image and the right image.35. A display apparatus comprising: a display panel including a pixeland a plurality of display blocks; a panel driver which applies one ofleft and right images to the pixel during a second period and applies aconverted image of the one of the left and right images to the pixelduring a first period prior to the second period which immediatelyfollows the first period; a light source part which provides light tothe display panel; and light converting glasses including a left glassand a right glass, an operation of the light converting glasses beingadjusted based on a first control signal, a second control signal, theleft image and the right image, wherein the converted image has agrayscale value only greater than a corresponding grayscale value of theone of the left and right images, wherein the light source partsequentially and temporally provides the light to all of the pluralityof display blocks in the second period, wherein an off-time of the firstcontrol signal for the left glass partially overlaps an off-time of thesecond control signal for the right glass, wherein the converted imageof the one of the left and right images is outputted to all of pixels ofthe display panel during the first period and one of the left and rightimages is outputted to all of the pixels of the display panel during thesecond period so that a length of the first period is same as a lengthof the second period.
 36. The display apparatus of claim 35, wherein thepanel driver generates the converted image by multiplying the grayscalevalue of the one of the left and right images by a converting value. 37.The display apparatus of claim 36, wherein the converting value isdetermined based on the grayscale value of the one of the left and rightimages.
 38. The display apparatus of claim 35, wherein the panel drivergenerates the converted image using a lookup table which stores agrayscale value corresponding to the grayscale value of the one of theleft and right images.
 39. The display apparatus of claim 35, furthercomprising: a light source driver which drives the light source part.40. The display apparatus of claim 39, wherein the light source driveris connected to the panel driver, and the light source driver drives thelight source part synchronized with an image displayed on the displaypanel.
 41. The display apparatus of claim 40, wherein the light sourcepart includes a plurality of light emitting blocks, and the lightemitting blocks are sequentially driven along a scanning direction ofthe image displayed on the display panel.
 42. The display apparatus ofclaim 35, wherein the light converting glasses selectively or totallyblocks light corresponding to the one of the left and the right images.